diff --git a/test_main.cpp b/test_main.cpp
index 308a8cc..7859156 100644
--- a/test_main.cpp
+++ b/test_main.cpp
@@ -257,6 +257,7 @@
 TEST_F(LibHidlTest, TaskRunnerTest) {
     using android::hardware::details::TaskRunner;
     TaskRunner tr;
+    tr.start(1 /* limit */);
     bool flag = false;
     tr.push([&] {
         usleep(1000);